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@ARTICLE{Lee:11208,
      author       = {Lee, J.H. and Fang, L. and Vlahos, E. and Ke, X. and Jung,
                      Y.W. and Fitting Kourkoutis, L. and Kim, J.W. and Ryan, P.
                      and Heeg, T. and Roeckerath, M. and Goian, V. and Bernhagen,
                      M. and Uecker, R. and Hammel, C. and Rabe, K.M. and Kamba,
                      S. and Schubert, J. and Freeland, J.W. and Muller, D.A. and
                      Fennie, C.J. and Schiffer, P. and Gopalan, V. and
                      Johnston-Halperin, E. and Schlom, D.G.},
      title        = {{A} strong ferroelectric ferromagnet created by means of
                      spin-lattice coupling},
      journal      = {Nature},
      volume       = {466},
      issn         = {0028-0836},
      address      = {London [u.a.]},
      publisher    = {Nature Publising Group},
      reportid     = {PreJuSER-11208},
      pages        = {954 - 958},
      year         = {2010},
      note         = {The authors acknowledge discussions and interactions with
                      M. D. Biegalski, D. H. A. Blank, C. B. Eom, M. B. Holcomb,
                      M. Lezaic, J. Mannhart, L. W. Martin, D. V. Pelekhov, R.
                      Ramesh, K. Z. Rushchanskii, N. Samarth, A. Schmehl, D. A.
                      Tenne, J.-M. Triscone, D. Viehland and L. Yan. In addition,
                      the financial support of the National Science Foundation
                      through grant DMR-0507146 and the MRSEC program
                      (DMR-0520404, DMR-0820404 and DMR-0820414), and of the Czech
                      Science Foundation (project no. 202/09/0682), is gratefully
                      acknowledged. Use of the Advanced Photon Source was
                      supported by the US Department of Energy, Office of Science,
                      Office of Basic Energy Sciences, under contract no.
                      DE-AC02-06CH11357.},
      abstract     = {Ferroelectric ferromagnets are exceedingly rare,
                      fundamentally interesting multiferroic materials that could
                      give rise to new technologies in which the low power and
                      high speed of field-effect electronics are combined with the
                      permanence and routability of voltage-controlled
                      ferromagnetism. Furthermore, the properties of the few
                      compounds that simultaneously exhibit these phenomena are
                      insignificant in comparison with those of useful
                      ferroelectrics or ferromagnets: their spontaneous
                      polarizations or magnetizations are smaller by a factor of
                      1,000 or more. The same holds for magnetic- or
                      electric-field-induced multiferroics. Owing to the weak
                      properties of single-phase multiferroics, composite and
                      multilayer approaches involving strain-coupled piezoelectric
                      and magnetostrictive components are the closest to
                      application today. Recently, however, a new route to
                      ferroelectric ferromagnets was proposed by which
                      magnetically ordered insulators that are neither
                      ferroelectric nor ferromagnetic are transformed into
                      ferroelectric ferromagnets using a single control parameter,
                      strain. The system targeted, EuTiO(3), was predicted to
                      exhibit strong ferromagnetism (spontaneous magnetization,
                      approximately 7 Bohr magnetons per Eu) and strong
                      ferroelectricity (spontaneous polarization, approximately 10
                      microC cm(-2)) simultaneously under large biaxial
                      compressive strain. These values are orders of magnitude
                      higher than those of any known ferroelectric ferromagnet and
                      rival the best materials that are solely ferroelectric or
                      ferromagnetic. Hindered by the absence of an appropriate
                      substrate to provide the desired compression we turned to
                      tensile strain. Here we show both experimentally and
                      theoretically the emergence of a multiferroic state under
                      biaxial tension with the unexpected benefit that even lower
                      strains are required, thereby allowing thicker high-quality
                      crystalline films. This realization of a strong
                      ferromagnetic ferroelectric points the way to
                      high-temperature manifestations of this spin-lattice
                      coupling mechanism. Our work demonstrates that a single
                      experimental parameter, strain, simultaneously controls
                      multiple order parameters and is a viable alternative tuning
                      parameter to composition for creating multiferroics.},
      keywords     = {Electric Capacitance / Electricity / Europium: chemistry /
                      Magnetics / Microscopy, Electron, Scanning Transmission /
                      Oxides: chemistry / Temperature / Titanium: chemistry /
                      X-Ray Diffraction / Oxides (NLM Chemicals) / europium
                      titanium trioxide (NLM Chemicals) / Titanium (NLM Chemicals)
                      / Europium (NLM Chemicals) / J (WoSType)},
      cin          = {IBN-1 / JARA-FIT},
      ddc          = {070},
      cid          = {I:(DE-Juel1)VDB799 / $I:(DE-82)080009_20140620$},
      pnm          = {Grundlagen für zukünftige Informationstechnologien},
      pid          = {G:(DE-Juel1)FUEK412},
      shelfmark    = {Multidisciplinary Sciences},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:20725036},
      UT           = {WOS:000281030300030},
      doi          = {10.1038/nature09331},
      url          = {https://juser.fz-juelich.de/record/11208},
}